Mike's Backflow Service
Backflow Specialty · Spanaway, WA · License #MIKESBS773JD
Active
State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
- Owner-verified — The business claimed this listing and verified ownership — free. Claim this listing
- Proven on Subser — The business runs real jobs through Subser — measured performance, not reviews.
License facts
Current filings: $6,000 surety bond (continuous) and $1,000,000 liability coverage through Oct 16, 2026. Principals on record since 2023.
- License type
- PLUMBING CONTRACTOR
- Effective date
- Apr 20, 2023
- Expiration date
- Apr 20, 2027
- UBI
- 605145964
- Business type
- Individual
- Phone
- (253) 345-9658
- Location
- Spanaway, WA 98387
Source: WA L&I contractor registration — verified Aug 13, 2026. Applies to every row above.
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Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| State Farm Fire & Cas Co | $6,000 | Mar 20, 2023 | Continuous — until canceled |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| State National Ins Co Inc | $1,000,000 | Jake O'Banion Ins & Fin Svcs | Oct 16, 2025 | Oct 16, 2026 |
What the bond and insurance requirements mean for homeowners
A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (general contractors file $30,000). This contractor's current filing shows a $6,000 bond.
The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.
Principals
| Name | Start date |
|---|---|
| Michaelpatrick Williams | Apr 4, 2023 |
What is a Backflow Specialty contractor licensed to do in Washington?
Backflow specialty contractors install, repair, and test backflow prevention assemblies — the devices that keep irrigation and other systems from siphoning contaminants into drinking water lines. Typical work includes installing assemblies on irrigation and fire lines and annual testing and repair. Washington requires a $15,000 surety bond and general liability insurance for this registration.
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Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.